Performance of cathode-supported SOFC with Ni0.5Cu0.5-CGO anode operated in humidified hydrogen and in low-concentration dry methane

被引：9

作者：

Chen, Gang ^{[1
]}

Guan, Guoqing ^{[2
]}

Kasai, Yutaka ^{[3
]}

You, Hong-Xin ^{[4
]}

Abudula, Abuliti ^{[1
,2
]}

机构：

[1] Hirosaki Univ, Grad Sch Sci & Technol, Hirosaki, Aomori 0368560, Japan

[2] Hirosaki Univ, NJRISE, Aomori 0300813, Japan

[3] Aomori Prefectural Ind Technol Res Ctr, Ind Res Inst, Aomori 0300113, Japan

[4] Dalian Univ Technol, Chem Engn Coll, Dalian 116024, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2012年 / 16卷 / 06期

关键词：

Solid oxide fuel cell; Cathode-supported; Bimetallic anode; Methane; OXIDE FUEL-CELLS; DIRECT OXIDATION; DEGRADATION; HYDROCARBONS; ELECTROLYTE; FABRICATION; CONVERSION; LAYER; FILM; SDC;

D O I：

10.1007/s10008-011-1615-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A Ni0.5Cu0.5-CGO (Ce0.8Gd0.2O1.9) anode in a LSM ((La0.75Sr0.25)(0.95)MnO3-delta )-CGO cathode-supported SOFC is tested in humidified H-2 (3% H2O) and in low concentration of dry methane, respectively. After co-sintering at 1,300 A degrees C, it was found that the A-site-deficient LSM effectively hindered the formation of La2Zr2O7 or SrZrO3. The OCVs of the cell are as high as 1.132, 1.14, and 1.147 V in humidified H-2 and 1.314, 1.269, and 1.2 V in 14.8% of dry methane at 850, 800 and 750 A degrees C, respectively, indicating that the ScSZ electrolyte film prepared by the present method is dense enough. The corresponding peak power densities are 0.396, 0.287, and 0.19 W cm(-2) in humidified H-2 and 0.249, 0.164, and 0.096 W cm(-2) in 14.8% of dry methane at 850, 800, and 750 A degrees C, respectively. The prepared cathode-supported SOFC with NiCu-CGO bimetallic anode shows long-term stability when dry methane is used as fuel.

引用

页码：2071 / 2077

页数：7

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